Canadian Standards Association Atmosphères ExplosiblesEuropean ConformityIECEx Approval

Features

  • Fully Approved Explosion-Proof Meter
  • 15, 30, 150, 300 mV unipolar; ±15, ±25, ±150, ±250 mV bipolar Inputs
  • Dual-Line 6-Digit Display, 0.6" (15 mm) & 0.46" (12 mm)
  • CapTouch Through-Glass Button Programming
  • Display Mountable at 0°, 90°, 180°, & 270°
  • 4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option
  • Free PC-Based, On-Board, MeterView Pro USB Programming Software
  • SunBright Display Standard Feature; Great for Outdoor Applications
  • Operating Temperature Range: -55 to 65°C (-67 to 149°F)
  • CSA Certified as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof
  • ATEX and IECEx Certified as Dust-Ignition-Proof / Flame-Proof
  • Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC
  • Supports One (1) 350 Ω Load Cell
  • Capture or Programmable Tare Feature
  • Auto-Zero Feature Eliminates Zero Drift
  • Ratiometric Operation
  • Programmable Display, Function Keys & Digital Inputs
  • Flanges for Wall or Pipe Mounting
  • Explosion-Proof Aluminum or Stainless Steel NEMA 4X / IP68 Enclosures
  • On-Board RS-485 Serial Communications
  • Modbus RTU Communication Protocol Standard
  • Password Protection
  • Four 3/4" NPT Threaded Conduit Openings
  • Stainless Steel Pipe Mounting Kit
  • Stainless Steel Tag Available
  • 3-Year Warranty

Overview

Front

PD8-6100 Front

Connections

PD8-6100 Connections

Introduction

The ProtEX-MAX PD8-6100 is a full-featured multipurpose, easy-to use digital strain gauge & load cell meter ideal for weight and force measurement applications. The PD8-6100 has all the same features as our PD6100 1/8 DIN meter, as a fully approved explosion-proof product. The product is certified by CSA as Explosion-Proof / Dust‑Ignition‑Proof / Flame-Proof, and is ATEX and IECEx certified as Dust‑Ignition-Proof / Flame-Proof.

Besides being suitable for hazardous areas, the number one feature that makes the PD8-6100 such a useful device is its built-in 5, 10 or 24 VDC power supply. This feature not only saves the cost of an external power supply, but also greatly simplifies wiring. In addition, there is a second 4 VDC @ 25 mA power supply provided with the 4 20 mA output option.

The first thing you notice about the PD8-6100 is its modern looking, rugged, explosion-proof housing with convenient mounting flanges, available in aluminum or stainless steel. Housed inside this enclosure is a dual-line, 6-digit display with high-intensity LEDs that can be read in direct sunlight. The main display can be programmed to indicate PV, maximum (peak), minimum (valley), alternating max/min, one of four alarm set points, or Modbus input. The secondary display can also be configured to display engineering units, set points, user defined legends, or simply turned off.

The four relays can be used for alarm indication or process control such as pump alternation control. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O options make the PD8-6100 an excellent addition to any system. Finally, all these features and capabilities can easily be programmed without removing the cover using CapTouch buttons in a hazardous area or with free MeterView Pro PC-based software in a safe area.

General

Display: Upper display: 0.60" (15 mm) high. Lower display: 0.46" (12 mm) high. Both are 6 digits (-99999 to 999999), red LEDs.
Display Intensity: Eight intensity levels
Display Update Rate: 5/second (200 ms)
Overrange: Display flashes 999999
Underrange: Display flashes -99999
Display Assignment: The upper and lower displays may be assigned to PV1, PV2, PCT (percent), max/min, alternate max & min, set points, units (lower display only), or Modbus input.
Programming Methods: Four through-glass CapTouch buttons, four mechanical buttons behind glass, digital inputs, PC and MeterView Pro software, or Modbus registers.
F4 Digital Input Contacts: 3.3 VDC on contact. Connect normally open contacts across F4 to COM.
F4 Digital Input Logic Levels: Logic High: 3 to 5 VDC; Logic Low: 0 to 1.25 VDC
Noise filter: Programmable from 2 to 199 (0 will disable filter)
Filter Bypass: Programmable from 0.1 to 99.9% of calibrated span
Recalibration: Calibrated at the factory. Recalibration is recommended at least every 12 months.
Max/Min Display: Max / min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
Password: Three programmable passwords restrict modification of programmed settings.
Non-Volatile Memory: All programmed settings are stored in nonvolatile memory for a minimum of ten years if power is lost.
Input Power Options: 85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max, or optional model with 12-24 VDC ±10%, 15 W max.
Fuse: Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse.
Normal Mode Rejection: Greater than 60 dB at 50/60 Hz
Isolation: 4 kV input/output-to-power line. 500 V input-to-output or output-to-P+ supply.
Overvoltage Category: Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.
Environmental:
T6 Class operating temperature range Ta = -55 to 60°C
T5 Class operating temperature range Ta = -55 to 65°C
Storage temperature range: -55 to 85ºC (-67 to 185ºF)
Relative humidity: 0 to 90% non-condensing
Max Power Dissipation: Maximum power dissipation limited to 15.1 W. See PD8 instruction manual for additional details.
Connections: Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external relays, digital I/O, and serial communication adapters.
Mounting: Four slotted flanges for wall mounting or NPS 1½" to 2½" or DN 40 to 65 mm pipe mounting
Dimensions: 6.42" x 7.97" x 8.47" (W x H x D) (163 mm x 202 mm x 215 mm)
Weight:
Aluminum: 14.7 lbs (6.67 kg)
Stainless Steel: 23.5 lbs (10.66 kg)
Warranty: 3 years parts & labor
USB Connection: Compatibility: USB 2.0 Standard, Compliant
   Connector Type: Micro-B receptacle
   Cable: USB A Male to Micro-B Cable
   Driver: Windows 98/SE, ME, 2000, Server 2003/2008, XP 32/64-Bit,
   Vista 32/64-Bit, Windows 7 32/64-Bit, Windows 10 32/64-Bit
   Power: USB Port

 

Strain Gauge Input

Inputs: Field selectable: 0-15, 0-30, 0-150, 0-300 mV, ±15, ±25, ±150, ±250 mV, or Modbus PV (Slave)
Accuracy: ±0.03% of calibrated span ±1 count
Temperature Drift: 0.002% of calibrated span/°C max from 0 to 65°C ambient, 0.005% of calibrated span/°C max from -30 to 0°C ambient
Function: Linear with multi-point linearization
Low-Flow Cutoff: 0-999999 (0 disables cutoff function)
Decimal Point: Up to five decimal places or none: d.ddddd, dd.dddd, ddd.ddd, dddd.dd, ddddd.d, or dddddd.
Calibration Range:

Input RangeMinimum Span Input 1 & Input 2
15 mV0.2 mV
25 mV, 30 mV0.4 mV
150 mV2.0 mV
250 mV, 300 mV4.0 mV

An Error message will appear if the input 1 and input 2 signals are too close together.
Input Impedance: Voltage ranges: greater than 1 MΩ.
Isolated Excitation Power Supply: Terminals Ex+ & Ex- may be used for sensor excitation, 10 VDC or 5 VDC ±10% @ 25 mA max. Field selectable for 10 VDC excitation voltage to operate up to two 1000 Ω strain gauges, or 5 VDC excitation voltage to operate up to four 1000 Ω strain gauges or one 350 Ω strain gauge.
For safe area only, not agency approved installations, Ex+ & Ex- may be used for sensor excitation; 10 VDC or 5 VDC ±10% @ 350 mA max.

 

Relays

Rating: 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 watts) @ 125/250 VAC for inductive loads such as contactors, solenoids, etc.
Noise Suppression: Noise suppression is recommended for each relay contact switching inductive loads.
Deadband: 0-100% of span, user programmable
High or Low Alarm: User may program any alarm for high or low trip point. Unused alarm LEDs and relays may be disabled (turned off).
Relay Operation: Automatic (non-latching), latching (requires manual acknowledge), sampling (based on time), pump alternation control (2 to 8 relays), Off (disable unused relays and enable interlock feature, manual on/off control mode).
Relay Reset: User selectable via front panel buttons or digital inputs.
   1. Automatic reset only (non-latching), when input passes the reset point.
   2. Automatic + manual reset at any time (non-latching).
   3. Manual reset only, at any time (latching).
   4. Manual reset only after alarm condition has cleared (latching).
Note: Front panel button or digital input may be assigned to acknowledge relays programmed for manual reset.
Time Delay: 0 to 999.9 seconds, on & off relay time delays. Programmable and independent for each relay.
Fail-Safe Operation: Programmable and independent for each relay.
Auto Initialization: When power is applied to the meter, relays will reflect the state of the input to the meter.

 

Serial Communications

Compatability: EIA-485
Connectors: Removable screw terminal connector
Max Distance: 3,937' (1,200 m) max
Status Indication: Separate LEDs for Power (P), Transmit (TX), and Receive (RX)
Protocol: Modbus® RTU (Slave Only)
Meter Address/Slave ID: 1 - 247
Baud Rate: 300 - 19,200 bps
Transmit Time Delay: Programmable between 0 and 199 ms or transmitter always on for RS-422 communication
Data: 8 bit (1 start bit, 1 or 2 stop bits)
Parity: Even, odd, or none with 1 or 2 stop bits
Byte-to-Byte Timeout: 0.01 - 2.54 seconds
Turn Around Delay: Less than 2 ms (fixed)
Note: Refer to the ProVu Modbus Register Tables for details

 

Isolated 4-20 mA Transmitter Output

Output Source: Process variable (PV), max, min, set points 1-8, manual control setting, or Modbus input
Scaling Range: 1.000 to 23.000 mA for any display range
Calibration: Factory calibrated: 4.000 to 20.000 = 4-20 mA output
Analog Output Programming: 23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break
Accuracy: ± 0.1% of span ± 0.004 mA
Temperature Drift: 0.4 µA/°C max from 0 to 65°C ambient, 0.8 µA/°C max from -40 to 0°C ambient
Note: Analog output drift is separate from input drift.
Isolated Transmitter Power Supply: Terminals I+ & R: 24 VDC ± 10%. Isolated from the input at >500 V. May be used to power the 4-20 mA output or other devices (except load cell/strain gauge). All models @ 25 mA max.
External Loop Power Supply: 35 VDC maximum
Output Loop Resistance:

Power supplyMinimumMaximum
24 VDC10Ω700Ω
35 VDC (external)100Ω1200Ω

 

Digital Inputs and Outputs

Channels: 4 digital inputs & 4 digital outputs per module
System: One expansion module may be added for a total of 8 inputs & 8 outputs
Note: The jumper located between the RJ45 connectors must be removed on the expansion module.
Digital Input Logic: High: 3 to 5 VDC; Low: 0 to 1.25 VDC
Digital Output Logic: High: 3.1 to 3.3 VDC; Low: 0 to 0.4 VD
Source Current: 10 mA maximum output current
Sink Current: 1.5 mA minimum input current
+5 V Terminal: To be used as pull-up for digital inputs only. Connect normally open pushbuttons across +5 V & DI 1-4. Warning: DO NOT use +5 V terminal (pin 1) to power external devices.
Function Assignment: The on-board digital inputs (1-4) are designed to mimic the behavior of the front panel buttons (Menu, F1, F2, & F3). If you wish to change their behavior, re-assign F1-F3 to the desired function, then change the corresponding digital input to match.


Enclosure

Material-AL Models: ASTM A413 LM6 die-cast aluminum, copper-free, enamel coated
-SS Models: ASTM A743 CF8M investment-cast 316 stainless steel
GasketFluoroelastomer
RatingNEMA 4X, IP68 Explosion-proof
Color-AL: Blue
-SS: Silver
WindowBorosilicate glass
ConduitsFour ¾" NPT threaded conduit openings
Conduit Stopping PlugsSold separately
FlangesTwo built-in flanges for wall and pipe mounting.
Tamper-Proof SealCover may be secured with tamper-proof seal.
Overall Dimensions6.42" x 7.97" x 8.47" (W x H x D)
(163 mm x 202 mm x 215 mm)
WeightAluminum: 14.7 lbs (6.67 kg)
Stainless Steel: 23.5 lbs (10.66 kg)
ATEXFlameproof
ATEXII 2GD
Ex db IIC Gb
Ex tb IIIC Db
IP66/IP68
Tamb: -55°C to +85°C
Certificate No.: Sira 19ATEX1252U
IECExFlameproof and dust protection
Ex db IIC Gb
Ex tb IIIC Db
IP66/IP68
Tamb: -55°C to +85°C
Certificate No.: IECEx SIR 19.0075U
CSAClass I, Division 1, Groups A, B, C, D
Class II, Division 1, Group E, F, G
Class III
Ex db IIC Gb
Ex tb IIIC Db
Class I, Zone 1, AEx db IIC Gb
Zone 21, AEx tb IIIC Db
IP66/IP68/TYPE 4X
Tamb: -55°C to +85°C
Certificate No.: 80011200
ULClass I, Division 1, Groups A, B, C, D
Class II, Division 1, Groups E, F, G
Class III
Class I, Zone 1, AEx db IIC Gb
Zone 21, AEx tb IIIC
Ex db IIC Gb
Ex tb IIIC Db
IP66/IP68/TYPE 4X
Tamb: -55°C to +85°C
Certificate Number: E518920
Note: The above approvals are for the enclosure only. See below for approvals on the entire instrument.


General Compliance Information

Electromagnetic Compatibility

EmissionsEN 55022
Class A ITE emissions requirements
Radiated EmissionsClass A
AC Mains Conducted EmissionsClass A
ImmunityEN 61326-1
Measurement, control, and laboratory equipment
EN 61000-6-2
EMC heavy industrial generic immunity standard
RFI - Amplitude Modulated80 -1000 MHz 10 V/m 80% AM (1 kHz)
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
Electrical Fast Transients±2kV AC mains, ±1kV other
Electrostatic Discharge±4kV contact, ±8kV air
RFI - Conducted10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge±2kV Common, ±1kV Differential
Surge1KV (CM)
Power-Frequency Magnetic Field30 A/m 70%V for 0.5 period
Voltage Dips40%V for 5 & 50 periods
70%V for 25 periods
Voltage Interruptions<5%V for 250 periods
Note: Testing was conducted on meters with cable shields grounded at the point of entry representing installations designed to optimize EMC performance.


Product Ratings and Approvals

CSAClass I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1, T5
Class III, Division 1, T6 (Ta max = 60°C)
Ex db IIC T5
Ex db IIC T6 (Ta max = 60°C)
Ex tb IIIC T90°C
Ta = -55°C to +65°C
Enclosure: Type 4X & IP66 / IP68
CSA Certificate: CSA 12 2531731
ATEXII 2 G D
Ex db IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -55°C to +*°C
*T6 = -55°C to +60°C
*T5 = -55°C to +65°C
Certificate Number: Sira 12ATEX1182X
IECExEx db IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -55°C to +*°C
*T6 = -55°C to +60°C
*T5 = -55°C to +65°C
Certificate Number: IECEx SIR 12.0073X
ATEX/IECEx Specific Conditions of Use:
  1. The equipment label and epoxy coating may generate an ignition-capable level of electrostatic charges under certain extreme conditions. The user should ensure that the equipment is not installed in a location where it may be subjected to external conditions (such as high-pressure steam) which might cause a build-up of electrostatic charges on non-conducting surfaces. Additionally, cleaning of the equipment should be done only with a damp cloth.
  2. Flameproof joints are not intended to be repaired.
  3. All entry closure devices shall be suitably certified as “Ex d”, “Ex t” and “IP66/68” as applicable. Suitable thread sealing compound (non-setting, non-insulating, non-corrosive, not solvent based, suitable for the ambient rating) must be used at the NPT conduit entries to achieve the IPx8 rating while maintaining the Ex protection concept.
Year of Construction

This information is contained within the serial number with the first four digits representing the year and month in the YYMM format.

For European Community:

The ProtEX-MAX must be installed in accordance with the ATEX directive 2014/34/EU, and the product certificate Sira 12ATEX1182X.

Free PC-Based MeterView Pro USB Programming Software & Cable

The ProtEX-MAX comes preloaded with free MeterView Pro programming software that connects and installs directly to your PC with a standard USB cable, also provided free with each instrument. This eliminates the need to insert CDs, install drivers, or download software from the internet. When you connect your ProtEX-MAX to your PC, MeterView Pro is downloaded to your PC, the software automatically selects the model you are programming, and you’re ready to start programming immediately. Further simplifying the programming process, the ProtEX-MAX can be powered from the USB port, so no need to apply external power while programming your meter. In addition to programming, the software will also allow you to monitor, and datalog a ProtEX-MAX using your PC. You can also generate and save programming files for later use.

Free Software
For more information visit www.predig.com/meterviewpro

Application


Load Cell

A typical application for load cells is in a tank weighing operation. In the following example, this three-legged tank has a load cell under each leg. The three load cells are wired locally in parallel within a junction box. The combined signals are then connected to the PD8-6100. During field calibration, the weight of the empty tank (zero point) and the full tank weight (full scale) are programmed into the meter. Over time, the tare feature on the PD8-6100 can account for obstacles like sludge buildup on the bottom of the tank when empty.

Dimensions

PD8-6000 Dimensions Front View

Front View

PD8-6000 Dimensions Side View

Side View

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